From 454dbf83a9bf292910c1495a2aa49fd8b960c28f Mon Sep 17 00:00:00 2001 From: =?utf8?q?Lo=C3=AFc=20Blot?= Date: Thu, 7 May 2020 22:38:41 +0200 Subject: [PATCH] Server class code cleanups (#9769) * Server::overrideDayNightRatio doesn't require to return bool There is no sense to sending null player, the caller should send a valid object * Server::init: make private & cleanup This function is always called before start() and loads some variables which can be loaded in constructor directly. Make it private and call it directly in start * Split Server inventory responsibility to a dedicated object This splits permit to found various historical issues: * duplicate lookups on player connection * sending inventory to non related player when a player connects * non friendly lookups on detached inventories ownership This reduce the detached inventory complexity and also increased the lookup performance in a quite interesting way for servers with thousands of inventories. --- src/client/game.cpp | 1 - src/main.cpp | 2 - src/network/serverpackethandler.cpp | 11 +- src/script/lua_api/l_base.cpp | 5 + src/script/lua_api/l_base.h | 2 + src/script/lua_api/l_inventory.cpp | 13 +- src/script/lua_api/l_object.cpp | 7 +- src/server.cpp | 192 ++++------------------------ src/server.h | 33 ++--- src/server/CMakeLists.txt | 1 + src/server/serverinventorymgr.cpp | 192 ++++++++++++++++++++++++++++ src/server/serverinventorymgr.h | 60 +++++++++ 12 files changed, 312 insertions(+), 207 deletions(-) create mode 100644 src/server/serverinventorymgr.cpp create mode 100644 src/server/serverinventorymgr.h diff --git a/src/client/game.cpp b/src/client/game.cpp index 1577a37db..4d7a85526 100644 --- a/src/client/game.cpp +++ b/src/client/game.cpp @@ -1302,7 +1302,6 @@ bool Game::createSingleplayerServer(const std::string &map_dir, } server = new Server(map_dir, gamespec, simple_singleplayer_mode, bind_addr, false); - server->init(); server->start(); return true; diff --git a/src/main.cpp b/src/main.cpp index 147f686ed..b3b17c2d1 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -887,7 +887,6 @@ static bool run_dedicated_server(const GameParams &game_params, const Settings & // Create server Server server(game_params.world_path, game_params.game_spec, false, bind_addr, true, &iface); - server.init(); g_term_console.setup(&iface, &kill, admin_nick); @@ -922,7 +921,6 @@ static bool run_dedicated_server(const GameParams &game_params, const Settings & // Create server Server server(game_params.world_path, game_params.game_spec, false, bind_addr, true); - server.init(); server.start(); // Run server diff --git a/src/network/serverpackethandler.cpp b/src/network/serverpackethandler.cpp index adaa9a965..39a912827 100644 --- a/src/network/serverpackethandler.cpp +++ b/src/network/serverpackethandler.cpp @@ -34,6 +34,7 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "network/networkprotocol.h" #include "network/serveropcodes.h" #include "server/player_sao.h" +#include "server/serverinventorymgr.h" #include "util/auth.h" #include "util/base64.h" #include "util/pointedthing.h" @@ -620,9 +621,9 @@ void Server::handleCommand_InventoryAction(NetworkPacket* pkt) ma->from_inv.applyCurrentPlayer(player->getName()); ma->to_inv.applyCurrentPlayer(player->getName()); - setInventoryModified(ma->from_inv); + m_inventory_mgr->setInventoryModified(ma->from_inv); if (ma->from_inv != ma->to_inv) - setInventoryModified(ma->to_inv); + m_inventory_mgr->setInventoryModified(ma->to_inv); bool from_inv_is_current_player = (ma->from_inv.type == InventoryLocation::PLAYER) && @@ -687,7 +688,7 @@ void Server::handleCommand_InventoryAction(NetworkPacket* pkt) da->from_inv.applyCurrentPlayer(player->getName()); - setInventoryModified(da->from_inv); + m_inventory_mgr->setInventoryModified(da->from_inv); /* Disable dropping items out of craftpreview @@ -723,7 +724,7 @@ void Server::handleCommand_InventoryAction(NetworkPacket* pkt) ca->craft_inv.applyCurrentPlayer(player->getName()); - setInventoryModified(ca->craft_inv); + m_inventory_mgr->setInventoryModified(ca->craft_inv); //bool craft_inv_is_current_player = // (ca->craft_inv.type == InventoryLocation::PLAYER) && @@ -739,7 +740,7 @@ void Server::handleCommand_InventoryAction(NetworkPacket* pkt) } // Do the action - a->apply(this, playersao, this); + a->apply(m_inventory_mgr.get(), playersao, this); // Eat the action delete a; } diff --git a/src/script/lua_api/l_base.cpp b/src/script/lua_api/l_base.cpp index b8658f62b..2bee09436 100644 --- a/src/script/lua_api/l_base.cpp +++ b/src/script/lua_api/l_base.cpp @@ -45,6 +45,11 @@ Server *ModApiBase::getServer(lua_State *L) return getScriptApiBase(L)->getServer(); } +ServerInventoryManager *ModApiBase::getServerInventoryMgr(lua_State *L) +{ + return getScriptApiBase(L)->getServer()->getInventoryMgr(); +} + #ifndef SERVER Client *ModApiBase::getClient(lua_State *L) { diff --git a/src/script/lua_api/l_base.h b/src/script/lua_api/l_base.h index e32647628..65fce8481 100644 --- a/src/script/lua_api/l_base.h +++ b/src/script/lua_api/l_base.h @@ -38,12 +38,14 @@ class GUIEngine; class ScriptApiBase; class Server; class Environment; +class ServerInventoryManager; class ModApiBase : protected LuaHelper { public: static ScriptApiBase* getScriptApiBase(lua_State *L); static Server* getServer(lua_State *L); + static ServerInventoryManager *getServerInventoryMgr(lua_State *L); #ifndef SERVER static Client* getClient(lua_State *L); static GUIEngine* getGuiEngine(lua_State *L); diff --git a/src/script/lua_api/l_inventory.cpp b/src/script/lua_api/l_inventory.cpp index 4c8977898..e41b5cb41 100644 --- a/src/script/lua_api/l_inventory.cpp +++ b/src/script/lua_api/l_inventory.cpp @@ -23,6 +23,7 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "common/c_converter.h" #include "common/c_content.h" #include "server.h" +#include "server/serverinventorymgr.h" #include "remoteplayer.h" /* @@ -38,7 +39,7 @@ InvRef* InvRef::checkobject(lua_State *L, int narg) Inventory* InvRef::getinv(lua_State *L, InvRef *ref) { - return getServer(L)->getInventory(ref->m_loc); + return getServerInventoryMgr(L)->getInventory(ref->m_loc); } InventoryList* InvRef::getlist(lua_State *L, InvRef *ref, @@ -54,7 +55,7 @@ InventoryList* InvRef::getlist(lua_State *L, InvRef *ref, void InvRef::reportInventoryChange(lua_State *L, InvRef *ref) { // Inform other things that the inventory has changed - getServer(L)->setInventoryModified(ref->m_loc); + getServerInventoryMgr(L)->setInventoryModified(ref->m_loc); } // Exported functions @@ -497,7 +498,7 @@ int ModApiInventory::l_get_inventory(lua_State *L) v3s16 pos = check_v3s16(L, -1); loc.setNodeMeta(pos); - if (getServer(L)->getInventory(loc) != NULL) + if (getServerInventoryMgr(L)->getInventory(loc) != NULL) InvRef::create(L, loc); else lua_pushnil(L); @@ -515,7 +516,7 @@ int ModApiInventory::l_get_inventory(lua_State *L) lua_pop(L, 1); } - if (getServer(L)->getInventory(loc) != NULL) + if (getServerInventoryMgr(L)->getInventory(loc) != NULL) InvRef::create(L, loc); else lua_pushnil(L); @@ -530,7 +531,7 @@ int ModApiInventory::l_create_detached_inventory_raw(lua_State *L) NO_MAP_LOCK_REQUIRED; const char *name = luaL_checkstring(L, 1); std::string player = readParam(L, 2, ""); - if (getServer(L)->createDetachedInventory(name, player) != NULL) { + if (getServerInventoryMgr(L)->createDetachedInventory(name, getServer(L)->idef(), player) != NULL) { InventoryLocation loc; loc.setDetached(name); InvRef::create(L, loc); @@ -545,7 +546,7 @@ int ModApiInventory::l_remove_detached_inventory_raw(lua_State *L) { NO_MAP_LOCK_REQUIRED; const std::string &name = luaL_checkstring(L, 1); - lua_pushboolean(L, getServer(L)->removeDetachedInventory(name)); + lua_pushboolean(L, getServerInventoryMgr(L)->removeDetachedInventory(name)); return 1; } diff --git a/src/script/lua_api/l_object.cpp b/src/script/lua_api/l_object.cpp index f71130378..0a9f3117b 100644 --- a/src/script/lua_api/l_object.cpp +++ b/src/script/lua_api/l_object.cpp @@ -33,6 +33,7 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "scripting_server.h" #include "server/luaentity_sao.h" #include "server/player_sao.h" +#include "server/serverinventorymgr.h" /* ObjectRef @@ -289,7 +290,7 @@ int ObjectRef::l_get_inventory(lua_State *L) if (co == NULL) return 0; // Do it InventoryLocation loc = co->getInventoryLocation(); - if (getServer(L)->getInventory(loc) != NULL) + if (getServerInventoryMgr(L)->getInventory(loc) != NULL) InvRef::create(L, loc); else lua_pushnil(L); // An object may have no inventory (nil) @@ -2172,9 +2173,7 @@ int ObjectRef::l_override_day_night_ratio(lua_State *L) ratio = readParam(L, 2); } - if (!getServer(L)->overrideDayNightRatio(player, do_override, ratio)) - return 0; - + getServer(L)->overrideDayNightRatio(player, do_override, ratio); lua_pushboolean(L, true); return 1; } diff --git a/src/server.cpp b/src/server.cpp index 05584be2d..16e026ce2 100644 --- a/src/server.cpp +++ b/src/server.cpp @@ -64,6 +64,7 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "chat_interface.h" #include "remoteplayer.h" #include "server/player_sao.h" +#include "server/serverinventorymgr.h" #include "translation.h" class ClientNotFoundException : public BaseException @@ -338,11 +339,6 @@ Server::~Server() infostream << "Server: Deinitializing scripting" << std::endl; delete m_script; - // Delete detached inventories - for (auto &detached_inventory : m_detached_inventories) { - delete detached_inventory.second; - } - while (!m_unsent_map_edit_queue.empty()) { delete m_unsent_map_edit_queue.front(); m_unsent_map_edit_queue.pop(); @@ -388,6 +384,9 @@ void Server::init() m_script = new ServerScripting(this); + // Must be created before mod loading because we have some inventory creation + m_inventory_mgr = std::unique_ptr(new ServerInventoryManager()); + m_script->loadMod(getBuiltinLuaPath() + DIR_DELIM "init.lua", BUILTIN_MOD_NAME); m_modmgr->loadMods(m_script); @@ -422,6 +421,7 @@ void Server::init() // Initialize Environment m_env = new ServerEnvironment(servermap, m_script, this, m_path_world); + m_inventory_mgr->setEnv(m_env); m_clients.setEnv(m_env); if (!servermap->settings_mgr.makeMapgenParams()) @@ -443,6 +443,8 @@ void Server::init() m_env->loadMeta(); + // Those settings can be overwritten in world.mt, they are + // intended to be cached after environment loading. m_liquid_transform_every = g_settings->getFloat("liquid_update"); m_max_chatmessage_length = g_settings->getU16("chat_message_max_size"); m_csm_restriction_flags = g_settings->getU64("csm_restriction_flags"); @@ -451,6 +453,8 @@ void Server::init() void Server::start() { + init(); + infostream << "Starting server on " << m_bind_addr.serializeString() << "..." << std::endl; @@ -1180,82 +1184,6 @@ void Server::onMapEditEvent(const MapEditEvent &event) m_unsent_map_edit_queue.push(new MapEditEvent(event)); } -Inventory* Server::getInventory(const InventoryLocation &loc) -{ - switch (loc.type) { - case InventoryLocation::UNDEFINED: - case InventoryLocation::CURRENT_PLAYER: - break; - case InventoryLocation::PLAYER: - { - RemotePlayer *player = m_env->getPlayer(loc.name.c_str()); - if(!player) - return NULL; - PlayerSAO *playersao = player->getPlayerSAO(); - if(!playersao) - return NULL; - return playersao->getInventory(); - } - break; - case InventoryLocation::NODEMETA: - { - NodeMetadata *meta = m_env->getMap().getNodeMetadata(loc.p); - if(!meta) - return NULL; - return meta->getInventory(); - } - break; - case InventoryLocation::DETACHED: - { - if(m_detached_inventories.count(loc.name) == 0) - return NULL; - return m_detached_inventories[loc.name]; - } - break; - default: - sanity_check(false); // abort - break; - } - return NULL; -} - -void Server::setInventoryModified(const InventoryLocation &loc) -{ - switch(loc.type){ - case InventoryLocation::UNDEFINED: - break; - case InventoryLocation::PLAYER: - { - - RemotePlayer *player = m_env->getPlayer(loc.name.c_str()); - - if (!player) - return; - - player->setModified(true); - player->inventory.setModified(true); - // Updates are sent in ServerEnvironment::step() - } - break; - case InventoryLocation::NODEMETA: - { - MapEditEvent event; - event.type = MEET_BLOCK_NODE_METADATA_CHANGED; - event.p = loc.p; - m_env->getMap().dispatchEvent(event); - } - break; - case InventoryLocation::DETACHED: - { - // Updates are sent in ServerEnvironment::step() - } - break; - default: - sanity_check(false); // abort - break; - } -} - void Server::SetBlocksNotSent(std::map& block) { std::vector clients = m_clients.getClientIDs(); @@ -2712,40 +2640,20 @@ void Server::sendRequestedMedia(session_t peer_id, } } -void Server::sendDetachedInventory(const std::string &name, session_t peer_id) +void Server::sendDetachedInventory(Inventory *inventory, const std::string &name, session_t peer_id) { - const auto &inv_it = m_detached_inventories.find(name); - const auto &player_it = m_detached_inventories_player.find(name); - - if (player_it == m_detached_inventories_player.end() || - player_it->second.empty()) { - // OK. Send to everyone - } else { - if (!m_env) - return; // Mods are not done loading - - RemotePlayer *p = m_env->getPlayer(player_it->second.c_str()); - if (!p) - return; // Player is offline - - if (peer_id != PEER_ID_INEXISTENT && peer_id != p->getPeerId()) - return; // Caller requested send to a different player, so don't send. - - peer_id = p->getPeerId(); - } - NetworkPacket pkt(TOCLIENT_DETACHED_INVENTORY, 0, peer_id); pkt << name; - if (inv_it == m_detached_inventories.end()) { + if (!inventory) { pkt << false; // Remove inventory } else { pkt << true; // Update inventory // Serialization & NetworkPacket isn't a love story std::ostringstream os(std::ios_base::binary); - inv_it->second->serialize(os); - inv_it->second->setModified(false); + inventory->serialize(os); + inventory->setModified(false); const std::string &os_str = os.str(); pkt << static_cast(os_str.size()); // HACK: to keep compatibility with 5.0.0 clients @@ -2760,16 +2668,17 @@ void Server::sendDetachedInventory(const std::string &name, session_t peer_id) void Server::sendDetachedInventories(session_t peer_id, bool incremental) { - for (const auto &detached_inventory : m_detached_inventories) { - const std::string &name = detached_inventory.first; - if (incremental) { - Inventory *inv = detached_inventory.second; - if (!inv || !inv->checkModified()) - continue; - } - - sendDetachedInventory(name, peer_id); + // Lookup player name, to filter detached inventories just after + std::string peer_name; + if (peer_id != PEER_ID_INEXISTENT) { + peer_name = getClient(peer_id, CS_Created)->getName(); } + + auto send_cb = [this, peer_id](const std::string &name, Inventory *inv) { + sendDetachedInventory(inv, name, peer_id); + }; + + m_inventory_mgr->sendDetachedInventories(peer_name, incremental, send_cb); } /* @@ -3442,15 +3351,12 @@ void Server::setClouds(RemotePlayer *player, const CloudParams ¶ms) SendCloudParams(player->getPeerId(), params); } -bool Server::overrideDayNightRatio(RemotePlayer *player, bool do_override, +void Server::overrideDayNightRatio(RemotePlayer *player, bool do_override, float ratio) { - if (!player) - return false; - + sanity_check(player); player->overrideDayNightRatio(do_override, ratio); SendOverrideDayNightRatio(player->getPeerId(), do_override, ratio); - return true; } void Server::notifyPlayers(const std::wstring &msg) @@ -3541,52 +3447,6 @@ void Server::deleteParticleSpawner(const std::string &playername, u32 id) SendDeleteParticleSpawner(peer_id, id); } -Inventory* Server::createDetachedInventory(const std::string &name, const std::string &player) -{ - if(m_detached_inventories.count(name) > 0){ - infostream<<"Server clearing detached inventory \""<second; - m_detached_inventories.erase(inv_it); - - if (!m_env) // Mods are not done loading - return true; - - const auto &player_it = m_detached_inventories_player.find(name); - if (player_it != m_detached_inventories_player.end()) { - RemotePlayer *player = m_env->getPlayer(player_it->second.c_str()); - - if (player && player->getPeerId() != PEER_ID_INEXISTENT) - sendDetachedInventory(name, player->getPeerId()); - - m_detached_inventories_player.erase(player_it); - } else { - // Notify all players about the change - sendDetachedInventory(name, PEER_ID_INEXISTENT); - } - return true; -} - // actions: time-reversed list // Return value: success/failure bool Server::rollbackRevertActions(const std::list &actions, @@ -3607,7 +3467,7 @@ bool Server::rollbackRevertActions(const std::list &actions, for (const RollbackAction &action : actions) { num_tried++; - bool success = action.applyRevert(map, this, this); + bool success = action.applyRevert(map, m_inventory_mgr.get(), this); if(!success){ num_failed++; std::ostringstream os; diff --git a/src/server.h b/src/server.h index 71059dd30..7a1de9370 100644 --- a/src/server.h +++ b/src/server.h @@ -68,6 +68,7 @@ struct MoonParams; struct StarParams; class ServerThread; class ServerModManager; +class ServerInventoryManager; enum ClientDeletionReason { CDR_LEAVE, @@ -116,7 +117,7 @@ struct ServerPlayingSound }; class Server : public con::PeerHandler, public MapEventReceiver, - public InventoryManager, public IGameDef + public IGameDef { public: /* @@ -134,7 +135,6 @@ public: ~Server(); DISABLE_CLASS_COPY(Server); - void init(); void start(); void stop(); // This is mainly a way to pass the time to the server. @@ -196,12 +196,6 @@ public: */ void onMapEditEvent(const MapEditEvent &event); - /* - Shall be called with the environment and the connection locked. - */ - Inventory* getInventory(const InventoryLocation &loc); - void setInventoryModified(const InventoryLocation &loc); - // Connection must be locked when called std::wstring getStatusString(); inline double getUptime() const { return m_uptime_counter->get(); } @@ -253,10 +247,8 @@ public: void deleteParticleSpawner(const std::string &playername, u32 id); - // Creates or resets inventory - Inventory *createDetachedInventory(const std::string &name, - const std::string &player = ""); - bool removeDetachedInventory(const std::string &name); + ServerInventoryManager *getInventoryMgr() const { return m_inventory_mgr.get(); } + void sendDetachedInventory(Inventory *inventory, const std::string &name, session_t peer_id); // Envlock and conlock should be locked when using scriptapi ServerScripting *getScriptIface(){ return m_script; } @@ -318,7 +310,7 @@ public: void setClouds(RemotePlayer *player, const CloudParams ¶ms); - bool overrideDayNightRatio(RemotePlayer *player, bool do_override, float brightness); + void overrideDayNightRatio(RemotePlayer *player, bool do_override, float brightness); /* con::PeerHandler implementation. */ void peerAdded(con::Peer *peer); @@ -389,6 +381,8 @@ private: float m_timer = 0.0f; }; + void init(); + void SendMovement(session_t peer_id); void SendHP(session_t peer_id, u16 hp); void SendBreath(session_t peer_id, u16 breath); @@ -457,8 +451,6 @@ private: void sendRequestedMedia(session_t peer_id, const std::vector &tosend); - void sendDetachedInventory(const std::string &name, session_t peer_id); - // Adds a ParticleSpawner on peer with peer_id (PEER_ID_INEXISTENT == all) void SendAddParticleSpawner(session_t peer_id, u16 protocol_version, u16 amount, float spawntime, @@ -656,14 +648,6 @@ private: s32 m_next_sound_id = 0; // positive values only s32 nextSoundId(); - /* - Detached inventories (behind m_env_mutex) - */ - // key = name - std::map m_detached_inventories; - // value = "" (visible to all players) or player name - std::map m_detached_inventories_player; - std::unordered_map m_mod_storages; float m_mod_storage_save_timer = 10.0f; @@ -674,6 +658,9 @@ private: // ModChannel manager std::unique_ptr m_modchannel_mgr; + // Inventory manager + std::unique_ptr m_inventory_mgr; + // Global server metrics backend std::unique_ptr m_metrics_backend; diff --git a/src/server/CMakeLists.txt b/src/server/CMakeLists.txt index 4d94504f6..0a5a8f3a7 100644 --- a/src/server/CMakeLists.txt +++ b/src/server/CMakeLists.txt @@ -4,5 +4,6 @@ set(server_SRCS ${CMAKE_CURRENT_SOURCE_DIR}/mods.cpp ${CMAKE_CURRENT_SOURCE_DIR}/player_sao.cpp ${CMAKE_CURRENT_SOURCE_DIR}/serveractiveobject.cpp + ${CMAKE_CURRENT_SOURCE_DIR}/serverinventorymgr.cpp ${CMAKE_CURRENT_SOURCE_DIR}/unit_sao.cpp PARENT_SCOPE) diff --git a/src/server/serverinventorymgr.cpp b/src/server/serverinventorymgr.cpp new file mode 100644 index 000000000..555e01ec6 --- /dev/null +++ b/src/server/serverinventorymgr.cpp @@ -0,0 +1,192 @@ +/* +Minetest +Copyright (C) 2010-2020 Minetest core development team + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#include "serverinventorymgr.h" +#include "map.h" +#include "nodemetadata.h" +#include "player_sao.h" +#include "remoteplayer.h" +#include "server.h" +#include "serverenvironment.h" + +ServerInventoryManager::ServerInventoryManager() : InventoryManager() +{ +} + +ServerInventoryManager::~ServerInventoryManager() +{ + // Delete detached inventories + for (auto &detached_inventory : m_detached_inventories) { + delete detached_inventory.second.inventory; + } +} + +Inventory *ServerInventoryManager::getInventory(const InventoryLocation &loc) +{ + switch (loc.type) { + case InventoryLocation::UNDEFINED: + case InventoryLocation::CURRENT_PLAYER: + break; + case InventoryLocation::PLAYER: { + RemotePlayer *player = m_env->getPlayer(loc.name.c_str()); + if (!player) + return NULL; + PlayerSAO *playersao = player->getPlayerSAO(); + if (!playersao) + return NULL; + return playersao->getInventory(); + } break; + case InventoryLocation::NODEMETA: { + NodeMetadata *meta = m_env->getMap().getNodeMetadata(loc.p); + if (!meta) + return NULL; + return meta->getInventory(); + } break; + case InventoryLocation::DETACHED: { + auto it = m_detached_inventories.find(loc.name); + if (it == m_detached_inventories.end()) + return nullptr; + return it->second.inventory; + } break; + default: + sanity_check(false); // abort + break; + } + return NULL; +} + +void ServerInventoryManager::setInventoryModified(const InventoryLocation &loc) +{ + switch (loc.type) { + case InventoryLocation::UNDEFINED: + break; + case InventoryLocation::PLAYER: { + + RemotePlayer *player = m_env->getPlayer(loc.name.c_str()); + + if (!player) + return; + + player->setModified(true); + player->inventory.setModified(true); + // Updates are sent in ServerEnvironment::step() + } break; + case InventoryLocation::NODEMETA: { + MapEditEvent event; + event.type = MEET_BLOCK_NODE_METADATA_CHANGED; + event.p = loc.p; + m_env->getMap().dispatchEvent(event); + } break; + case InventoryLocation::DETACHED: { + // Updates are sent in ServerEnvironment::step() + } break; + default: + sanity_check(false); // abort + break; + } +} + +Inventory *ServerInventoryManager::createDetachedInventory( + const std::string &name, IItemDefManager *idef, const std::string &player) +{ + if (m_detached_inventories.count(name) > 0) { + infostream << "Server clearing detached inventory \"" << name << "\"" + << std::endl; + delete m_detached_inventories[name].inventory; + } else { + infostream << "Server creating detached inventory \"" << name << "\"" + << std::endl; + } + + Inventory *inv = new Inventory(idef); + sanity_check(inv); + m_detached_inventories[name].inventory = inv; + if (!player.empty()) { + m_detached_inventories[name].owner = player; + + if (!m_env) + return inv; // Mods are not loaded yet, ignore + + RemotePlayer *p = m_env->getPlayer(name.c_str()); + + // if player is connected, send him the inventory + if (p && p->getPeerId() != PEER_ID_INEXISTENT) { + m_env->getGameDef()->sendDetachedInventory( + inv, name, p->getPeerId()); + } + } else { + if (!m_env) + return inv; // Mods are not loaded yet, don't send + + // Inventory is for everybody, broadcast + m_env->getGameDef()->sendDetachedInventory(inv, name, PEER_ID_INEXISTENT); + } + + return inv; +} + +bool ServerInventoryManager::removeDetachedInventory(const std::string &name) +{ + const auto &inv_it = m_detached_inventories.find(name); + if (inv_it == m_detached_inventories.end()) + return false; + + delete inv_it->second.inventory; + const std::string &owner = inv_it->second.owner; + + if (!owner.empty()) { + RemotePlayer *player = m_env->getPlayer(owner.c_str()); + + if (player && player->getPeerId() != PEER_ID_INEXISTENT) + m_env->getGameDef()->sendDetachedInventory( + nullptr, name, player->getPeerId()); + + } else { + // Notify all players about the change + m_env->getGameDef()->sendDetachedInventory( + nullptr, name, PEER_ID_INEXISTENT); + } + + m_detached_inventories.erase(inv_it); + + return true; +} + +void ServerInventoryManager::sendDetachedInventories(const std::string &peer_name, + bool incremental, + std::function apply_cb) +{ + for (const auto &detached_inventory : m_detached_inventories) { + const DetachedInventory &dinv = detached_inventory.second; + if (incremental) { + if (!dinv.inventory || !dinv.inventory->checkModified()) + continue; + } + + // if we are pushing inventories to a specific player + // we should filter to send only the right inventories + if (!peer_name.empty()) { + const std::string &attached_player = dinv.owner; + if (!attached_player.empty() && peer_name != attached_player) + continue; + } + + apply_cb(detached_inventory.first, detached_inventory.second.inventory); + } +} diff --git a/src/server/serverinventorymgr.h b/src/server/serverinventorymgr.h new file mode 100644 index 000000000..d0aac4dae --- /dev/null +++ b/src/server/serverinventorymgr.h @@ -0,0 +1,60 @@ +/* +Minetest +Copyright (C) 2010-2020 Minetest core development team + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#pragma once + +#include "inventorymanager.h" +#include + +class ServerEnvironment; + +class ServerInventoryManager : public InventoryManager +{ +public: + ServerInventoryManager(); + virtual ~ServerInventoryManager(); + + void setEnv(ServerEnvironment *env) + { + assert(!m_env); + m_env = env; + } + + Inventory *getInventory(const InventoryLocation &loc); + void setInventoryModified(const InventoryLocation &loc); + + // Creates or resets inventory + Inventory *createDetachedInventory(const std::string &name, IItemDefManager *idef, + const std::string &player = ""); + bool removeDetachedInventory(const std::string &name); + + void sendDetachedInventories(const std::string &peer_name, bool incremental, + std::function apply_cb); + +private: + struct DetachedInventory + { + Inventory *inventory; + std::string owner; + }; + + ServerEnvironment *m_env = nullptr; + + std::unordered_map m_detached_inventories; +}; \ No newline at end of file -- 2.25.1